Concealed Chilled Water Fan Coil Units - Zamil Air Conditioners

Concealed
Chilled Water Fan Coil Units
DWX Series
DWX02 thru DWX20
200 CFM thru 2000 CFM

Company Business
Zamil Air Conditioners was founded in 1974, and is the first major business venture in manufacturing sector for the Al Zamil
group of Companies. It is also the first manufacturing unit for air conditioners to be established in Saudi Arabia.
Zamil Air conditioners manufactures both consumer and central range of air conditioners and has sales operations in over
55 countries in the Middle East, Europe, America, Africa, Australia and the Far East.
The company’s operations are structured into four Strategic Business Units (SBUs) supporting six in - house product and
service brands as well as a number of international brands under the OEM sales.
The six in-house brands are Classic, Cooline, CoolCare, Clima Tech, Geoclima and Kessler Clima Tech.
The four SBUs are:
1. Consumer Business unit supporting Classic, Cooline, GE and OEM brands for consumer range of air conditioners.
2. Unitary & Applied Business unit supporting Classic, Cooline, GE and OEM brands for commercial range of air
conditioners.
3. Zamil CoolCare - service and maintenance provider.
4. Geoclima srl - independent business and supporting other SBUs for their requirement of Chillers & Double skin AHU’s.
The first three SBUs - Consumer Products, Unitary & Applied Products and Zamil CoolCare direct their business operations
from the corporate headquarters at Dammam, Saudi Arabia.
The production facilities at Dammam are shared by Consumer Products and Unitary & Applied Products. Geoclima has its
own production and functional departments located at Monfalcone, Italy.
All the four SBUs, while operating independently, supplement each other’s activities in a way that makes synergy work at
its best and achieve the corporate goals of increased productivity and efficiently.
Factories and Productions
Zamil Air Conditioners has its prime manufacturing base at Dammam, Saudi Arabia and has one speciality production
facility in Italy operated by Geoclima.
The company can produce up to 440,000 room air conditioners, 60,000 mini-split systems and 36,500 central air-conditioning
systems per year.
Quality & Product Certificates
The Quality systems and policies at Zamil Air Conditioners comply with the required ISO 9001:2000 certification.
Zamil Air Conditioners is the first company in Saudi Arabia to receive the SASO (Saudi Arabia’s Standard Organization)
certificate for room air conditioners. Its products and services are also certified with:
1. CE (Council of European Community)
2. UL (Underwriters Laboratory)
3. AHAM certificate (Association of Home Appliance Manufacturers)
4. Eurovent
5. DEMKO
6. ETL
Other awards include the prestigious Engineering Excellence Award of General Electric, and the inaugural Prince Mohammed
bin Fahd Al Saud Award for Factory Safety.
Our Products
In addition to the consumer products such as the Room Air Conditioners (RAC) and the Mini Splits, Zamil Air
Conditioners manufacturers a host of residential and commercial air conditioners. This board range extends from the
concealed units up to 5 ton, the ducted splits up to 30 tons, the packaged units up to 70 tons. The single and double skin
air handling units up to 130,000 CFM and the water chillers up to 487 ton cooling capacity.

INDEX
Contents Page
Model decoding ......................................................................................................................................... 2
Unit features ............................................................................................................................................. 2
Standard specifications .......................................................................................................................... 2-3
Options ..................................................................................................................................................... 3
Physical data ............................................................................................................................................ 4
Hot water capacities.................................................................................................................................. 5
Cooling capacities (English units) ............................................................................................................. 6
Cooling capacities (Metric units) ............................................................................................................... 7
Fan performance data (English units) ........................................................................................................ 8
Fan performance data (Metric units) .......................................................................................................... 9
Unit dimensions ...................................................................................................................................... 10
Coil dimensions ...................................................................................................................................... 11
Typical schematic wiring diagram ....................................................................................................... 12-13
Heater arrangements ............................................................................................................................... 14
Valve packages ...................................................................................................................................... 14
Installation, operation & maintenance...................................................................................................... 15
Servicing instructions .............................................................................................................................. 16
Parts list ................................................................................................................................................. 17
CONTINUING RESEARCH RESULTS IN STEADY IMPROVEMENTS.
THEREFORE, THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
1

1, 2 & 3
BASIC (SERIES)
DWX: CHILLED
WATER
FAN COIL
UNIT
4 & 5
SIZE
(x 100 CFM)
02
03
04
06
08
10
12
14
16
18
20
COMPACT DIMENSIONS
Ideal to fit into tight spaces.
MODEL DECODING
6
7
8
9
10
11
12
13
ELECTRICAL
SUPPLY (V-Ph-Hz)
COIL HEATER ACCESSORIES FIN
COIL
CONNECTION
FILTER OPTION
C : 208/230-1-60 A : 3 ROW CHILLED N : NO HEATER N : STANDARD A : ALUMINUM R : RH SIDE, N : NONE N : STANDARD
WATER
J : 3 ROW CHILLED
WATER + 1 ROW
HEAT
D :2 kW
E :3 kW
G:5 kW
FIN
B : 3D VALVE PACKAGE
(COOL ONLY) B : COATED
ALUMINUM
K : 4D VALVE PACKAGE FIN
STANDARD
(FACING AIR
DISCHARGE)
L : LH SIDE,
A :ALUMINUM
(1/2" THICK)
UNIT
B : 4 ROW CHILLED
WATER
K : 4 ROW CHILLED
N : NO HEATER
E :3 kW
G:5 kW
J :7 kW
(HEAT & COOL)
C : COPPER FIN
OPTIONAL
(FACING AIR
DISCHARGE)
WATER + 1 ROW
HEAT
M: 10 kW
UNIT FEATURES
EASY MAINTENANCE / ONE SIDE ACCESS
Filters can be easily removed by lifting/sliding. Piping and controls are on one side for easy access.
QUIET, PULSE FREE AIR DELIVERY
Centrifugal fans that are statically and dynamically balanced, handle up to 0.5" w.g. external static pressure allowing you
to keep the unit away from your comfort zone.
STANDARD SPECIFICATIONS
UNIT CONSTRUCTION
These ducted indoor fan coil units consists of a coil, motor/blower assembly and a drain pan securely mounted on
heavy gauge galvanized steel housing. Steel sheet panels are zinc coated and galvanized by the hot dip process of lockforming
quality conforming to ASTM A 653 commercial weight G-90.
This unit is designed for those concealed overhead installations which require supply ductwork. A 1.5" duct collar is
provided into the front panel for supply air duct connection. Return air is from the rear side.
Access to the blower assembly is provided through the removable bottom panel from where the complete fan/motor deck
can be removed for servicing. The panels are insulated with 5/16" thick (density 0.033 g/cm3 ) polyethylene acoustic and
thermal insulation. 1/2" thick permanent washable type aluminum filter is provided. Units are rated in accordance with ARI
440.
BLOWER ASSEMBLY
The direct drive blower motor assembly is easily accessible for complete servicing after removal of fan deck from the unit.
The aluminum blower wheels are large in diameter and are of the forward curved design. Constructed of galvanized steel,
they are statically and dynamically balanced for quiet and smooth performance.
MOTORS
Motors are permanent split capacitor type with three speed windings. The bearings are of sleeve type.
COILS
Coils are 3/8" OD copper tubing with aluminum fins mechanically bonded to the tubes. Manual air vents are provided on all
chilled water coils (auto air vents are available as an option). The standard coil is 3 rows (for sizes 02 to 12) & 4 rows (for
size 14 and above) provide adequate capacity for most applications designed for 12 0 F water temperature rise. A 4 pipe coil
consisting of 3 rows of cooling coil and 1 row of heating coil (for sizes 02 to 12) & 4 rows of cooling coil and 1 row of heating
coil (for size 14 and above) is also offered as an optional item. Each coil is pressure tested in the factory at not less than
300 psi (2070 kpa) air pressure.
2

DRAIN PAN
The condensate drain pan is fabricated of 18 gauge galvanized steel. The drain pan is powder coat painted. The outer
surface is thermally insulated.
DRIP LIP
The purpose of a 'drip-lip' is to capture any condensate from the valve packages and direct it to the drain pan. It is fabricated
of a single metal formed to fit on the side of the drain pan. They may be installed in the field and should always be pitched
towards the drain pan to assure proper drainage. This will be supplied loose for field installations along with valve packages.
OPTIONS
ELECTRIC HEATERS
The heater element is of the resistance open coil type. Thermal overheat cut-outs and fusible links are provided to shut-off
power to heaters in case of airflow failure. The complete heater assembly is sliding type and easy to remove for maintenance.
FILTERS
All models are furnished with 1/2" thick permanent washable type aluminum filters as standard. One inch thick aluminum
filters can be provided as an option.
VALVE PACKAGES
A variety of valve packages, as a set are available as an option (3D for two pipe system and 4D for four pipe systems).
These valves can be factory installed or shipped loose for field installation.
THERMOSTAT
An attractive wall mount three speed thermostat with all required functions and features for safe and smooth operation
which can be used for cooling & heating. This thermostat can be supplied loose through separate Kit number.
TYPICAL THERMOSTAT
3

PHYSICAL DATA
MODEL NUMBER DWX02 DWX03 DWX04 DWX06 DWX08 DWX10 DWX12 DWX14 DWX16 DWX18 DWX20
POWER SUPPLY, V-Ph-Hz 208/230-1-60
SOUND PRESSURE LEVEL (high/med./low), dBA @ 9ft., 0.15 ESP 32/31/30 33/32/30 35/32/30 36/34/33 42/36/35 44/40/37 44/40/37 46/44/40 37/33/30 40/37/33 42/39/36
BLOWER Type Forward Curved
Size (mm) 146x196 146x196 146x196 146x240 146x240 180x240 180x240 180x240 200x216 200x216 200x216
Quantity 1 1 1 2 2 2 2 2 2 2 2
BLOWER MOTOR Quantity 1 1 1 1 1 1 1 1 1 1 1
FLA 0.66 0.66 0.66 1.2 1.2 2.52 2.52 2.52 4.2 4.2 4.2
Watts @ 0.15 ESP, high speed 84 103 116 125 140 373 450 530 590 660 720
COOLING COIL Type Corrugated Fin & Tube
Tube dia. - Rows - FPI 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 3 - 12 3/8 - 4 - 12 3/8 - 4 - 14 3/8 - 4 - 14 3/8 - 4 - 14
Face area, Sq. ft. (Sq. m.) 1.75 (0.16) 1.75 (0.16) 1.75 (0.16) 2.22 (0.2) 2.22 (0.2) 3 (0.28) 3 (0.28) 3 (0.28) 4.37 (0.4) 4.37 (0.4) 4.37 (0.4)
HOT WATER COIL Type Corrugated Fin & Tube
4
Tube dia. - Rows - FPI 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14 3/8 - 1 - 14
Face area, Sq. ft. (Sq. m.) 1.75 (0.16) 1.75 (0.16) 1.75 (0.16) 2.22 (0.2) 2.22 (0.2) 3 (0.28) 3 (0.28) 3 (0.28) 4.37 (0.4) 4.37 (0.4) 4.37 (0.4)
COIL CONNECTIONS Chilled water, Inlet - Outlet (inch) 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8
Hot water, Inlet - Outlet (inch) 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8 5/8 - 5/8
RETURN AIR FILTER Size (inch) 7.5x14.6 7.5x14.6 7.5x14.6 8x16.5 8x16.5 9.5x18.5 9.5x18.5 9.5x18.5 11x22.75 11x22.75 11x22.75
Quantity 2 2 2 2 2 2 2 2 2 2 2
SHIPPING WEIGHT kg. (approx.) 34 34 34 40 40 52 52 55 65 65 65

MODEL
NUMBER
HOT WATER CAPACITIES
EWT - 150 0 F (65 0 C)
GPM (LPS)
CAPACITIES
MBH (kW)
EWT - 180 0 F (82 0 C)
GPM (LPS)
CAPACITIES
MBH (kW)
DWX02 1.10 (0.069) 11.4 (3.33) 1.71 (0.107) 17.1 (5.0)
DWX03 1.21 (0.076) 12.0 (3.51) 1.8 (0.113) 18.05 (5.3)
DWX04 1.3 (0.081) 12.6 (3.7) 2.0 (0.126) 19.23 (5.63)
DWX06 1.6 (0.10) 16.0 (4.7) 2.45 (0.154) 24.4 (7.14)
DWX08 1.7 (0.107) 16.5 (4.83) 2.55 (0.16) 25.43 (7.45)
DWX10 2.3 (0.144) 22.5 (6.6) 3.5 (0.22) 34.72 (10.16)
DWX12 2.41 (0.15) 23.41 (6.85) 3.7 (0.23) 36.54 (10.7)
DWX14 2.51 (0.16) 24.26 (7.1) 3.86 (0.24) 38.25 (11.2)
DWX16 3.41 (0.214) 33.32 (9.75) 5.2 (0.32) 51.7 (15.16)
DWX18 3.61 (0.227) 35.0 (10.25) 5.55 (0.35) 55.0 (16.11)
DWX20 3.7 (0.233) 35.8 (10.5) 5.71 (0.36) 56.5 (16.55)
NOTE: Capacities @ 70 0 F (21 0 C) Entering Air Temperature & 20 0 F (11 0 C) Water Temperature Drop.
LEGEND:
EWT - Entering Water Temperature
MBH - 1000 BTUH
GPM - Gallons Per Minute
LPS - Liters Per Second
5

E
N
G
L
I
S
H
U
N
I
T
S
CHILLED WATER COOLING CAPACITIES (ENGLISH UNITS)
WTR UNIT
( SIZE
0 ENTERING AIR TEMP. = 76
F)
8
10
12
0F DB/630F WB (@ HIGH SPEED) ENTERING AIR TEMP. = 800F DB/670F WB (@ HIGH SPEED)
450 40 F EWT
TC SC GPM
0F EWT
50
TC SC GPM
0F EWT
WTR UNIT
TC SC GPM ( SIZE
0 45
F)
8
10
12
0 40 F EWT
TC SC GPM
0F EWT
50
TC SC GPM
0F EWT
TC SC GPM
02 10.60 7.40 2.63 8.10 6.20 2.01 5.94 5.42 1.48
02 16.84 10.10 4.21 14.21 8.74 3.55 11.64 7.93 2.91
03 11.70 8.30 2.92 9.10 7.10 2.26 6.67 6.29 1.67
03 18.99 11.55 4.75 15.94 10.21 3.98 12.97 9.12 3.24
04 12.79 9.19 3.19 10.00 8.00 2.50 7.37 7.10 1.84
04 21.08 12.93 5.27 17.60 11.44 4.40 14.23 10.20 3.56
06 17.06 12.36 4.27 13.43 10.84 3.36 9.89 9.64 2.47
06 27.95 17.27 6.99 23.35 15.32 5.84 18.86 13.71 4.71
08
10
18.43 13.42
25.50 18.59
4.61
6.37
14.49 11.76
20.02 16.28
3.62
5.01
10.64 10.47
14.69 14.50
2.66
3.67
08
10
30.17 18.73 7.54 25.12
41.75 25.95 10.44 34.72
16.59
22.97
6.28
8.68
20.19 14.84
27.93 20.57
5.05
6.98
12 28.36 20.80 7.09 22.20 18.21 5.55 16.24 16.22 4.06
12 46.43 29.01 11.61 38.43 25.64 9.61 31.09 23.09 7.77
14 37.28 26.91 9.32 29.24 23.49 7.31 21.45 20.82 5.36
14 62.12 38.22 15.53 51.65 33.70 12.91 41.53 30.00 10.38
16 47.04 33.63 11.76 36.61 29.11 9.15 26.99 25.77 6.75
16 77.13 47.17 19.28 64.53 41.71 16.13 52.28 37.21 13.07
18 52.52 37.85 13.13 41.22 33.05 10.30 30.28 29.32 7.57
18 87.22 53.60 21.80 72.65 47.34 18.16 58.54 42.17 14.63
20 55.35 39.98 13.83 43.40 34.92 10.85 31.84 30.96 7.96
20 92.08 56.72 23.02 76.55 50.04 19.13 61.53 44.54 15.38
02 9.90 6.95 1.98 7.80 6.00 1.56 5.80 5.32 1.16
02 16.05 9.67 3.21 13.51 8.54 2.70 11.00 7.58 2.20
03 11.16 7.96 2.23 8.80 6.90 1.76 6.49 6.15 1.30
03 17.94 10.97 3.59 15.00 9.69 3.00 12.20 8.67 2.44
04 12.37 8.92 2.47 9.70 7.80 1.95 7.14 6.92 1.43
04 19.76 12.19 3.95 16.42 10.77 3.28 13.54 9.80 2.71
06 16.60 12.06 3.32 13.06 10.57 2.61 9.57 9.39 1.92
06 26.20 16.29 5.24 21.81 14.43 4.36 18.17 13.28 3.63
08 17.90 13.07 3.58 14.05 11.46 2.81 10.27 10.17 2.06
08 28.12 17.57 5.62 23.57 15.70 4.71 19.60 14.47 3.92
10 24.74 18.09 4.95 19.40 15.85 3.88 14.17 14.08 2.84
10 38.85 24.31 7.77 32.61 21.76 6.52 27.10 20.04 5.42
12 27.43 19.79 5.49 21.46 17.68 4.29 15.61 15.61 3.12
12 42.87 26.99 8.57 36.27 24.35 7.25 30.08 22.47 6.01
14 36.13 26.17 7.22 28.32 22.86 5.66 20.71 20.23 4.14
14 57.82 35.80 11.56 47.83 31.53 9.56 39.58 28.82 7.92
16 45.25 32.50 9.05 35.61 28.40 7.12 26.17 25.18 5.23
16 72.50 44.59 14.50 60.38 39.38 12.07 49.50 35.57 9.90
18 50.93 36.83 10.18 39.98 32.21 7.99 29.26 28.52 5.85
18 81.41 50.37 16.28 67.46 44.40 13.49 55.77 40.53 11.15
20 53.63 38.90 10.72 42.04 33.98 8.41 30.73 30.08 6.15
20 85.68 53.11 17.13 70.84 46.78 14.17 58.76 42.86 11.75
02 9.71 6.82 1.62 7.50 5.90 1.28 5.67 5.23 0.94
02 15.38 9.31 2.56 12.88 8.19 2.15 10.60 7.36 1.77
03 10.90 7.81 1.82 8.50 6.80 1.43 6.31 6.02 1.05
03 17.04 10.47 2.84 14.33 9.31 2.39 11.95 8.53 1.99
04 12.09 8.74 2.01 9.40 7.60 1.58 6.92 6.75 1.15
04 18.62 11.56 3.10 15.90 10.47 2.65 13.23 9.61 2.20
06 16.22 11.81 2.70 12.73 10.33 2.12 9.27 9.14 1.55
06 24.97 15.59 4.16 21.33 14.16 3.56 17.76 13.05 2.96
08
10
17.46 12.79
24.12 17.69
2.91
4.02
13.67 11.19
18.86 15.48
2.28
3.14
9.92 9.90
13.67 13.67
1.65
2.28
08
10
26.97 16.67
37.30 23.04
4.49
6.22
23.01
31.81
15.38
21.29
3.84
5.30
19.13 14.18
26.43 19.63
3.19
4.40
12 26.68 19.47 4.45 20.81 17.22 3.47 15.01 15.01 2.50
12 41.46 26.18 6.91 35.30 23.79 5.88 29.27 21.96 4.88
14 35.20 25.57 5.87 27.55 22.31 4.59 20.02 19.68 3.34
14 54.52 33.95 9.09 46.46 30.73 7.74 38.58 28.21 6.43
16 44.24 31.85 7.37 34.75 27.83 5.79 25.40 24.58 4.23
16 68.50 42.36 11.42 58.13 38.10 9.69 48.41 34.96 8.07
18 49.68 36.04 8.28 38.92 31.47 6.49 28.32 27.76 4.72
18 76.77 47.77 12.79 65.48 43.25 10.91 54.42 39.71 9.07
20 52.26 37.99 8.71 40.89 33.15 6.81 29.70 29.25 4.95
20 80.94 50.44 13.49 68.97 45.68 11.49 57.27 41.96 9.54
ENTERING AIR TEMP. = 84 0 F DB/71 0 F WB (@ HIGH SPEED)
WTR
( 0 F)
8
10
12
UNIT
45
SIZE
0 40 F EWT
TC SC GPM
0F EWT
50
TC SC GPM
0F EWT
TC SC GPM
02 23.55 12.66 5.89 20.74 11.35 5.18 18.01 10.24 4.50
03 26.82 14.51 6.70 23.53 13.05 5.88 20.35 11.82 5.09
04 30.03 16.34 7.51 26.26 14.69 6.56 22.62 13.32 5.65
06 39.72 21.72 9.93 34.79 19.61 8.70 29.99 17.85 7.50
08 43.13 23.65 10.78 37.68 21.35 9.42 32.41 19.43 8.10
10 59.84 32.84 14.96 52.23 29.63 13.06 44.88 26.95 11.22
12 67.14 36.96 16.78 58.40 33.29 14.60 49.99 30.25 12.50
14 89.41 48.69 22.35 77.87 43.67 19.47 66.80 39.48 16.70
16 109.59 59.50 27.40 95.94 53.51 23.98 82.74 48.48 20.68
18 125.01 68.07 31.25 109.06 61.12 27.26 93.72 55.34 23.43
20 132.51 72.22 33.13 115.42 64.82 28.85 99.01 58.62 24.75
02 22.45 12.09 4.49 19.78 10.87 3.96 17.17 9.83 3.43
03 25.37 13.78 5.07 22.27 12.42 4.45 19.24 11.27 3.85
04 28.20 15.40 5.64 24.67 13.90 4.93 21.23 12.61 4.24
06 37.40 20.53 7.48 32.73 18.57 6.55 28.16 16.91 5.63
08 40.40 22.25 8.08 35.28 20.13 7.06 30.27 18.33 6.05
10 55.95 30.83 11.19 48.81 27.88 9.76 41.83 25.38 8.37
12 62.32 34.04 12.46 54.18 31.12 10.84 46.26 28.31 9.25
14 83.28 45.57 16.66 72.60 41.01 14.52 62.24 37.17 12.45
16 103.16 56.20 20.63 90.35 50.69 18.07 77.85 46.01 15.57
18 116.84 63.89 23.37 102.00 57.56 20.40 87.57 52.22 17.51
20 123.44 67.60 24.69 107.61 60.87 21.52 92.23 55.18 18.45
02 21.60 11.66 3.60 19.02 10.49 3.17 16.48 9.49 2.75
03 24.24 13.20 4.04 21.25 11.91 3.54 18.31 10.80 3.05
04 26.79 14.68 4.46 23.39 13.24 3.90 20.06 12.02 3.34
06 35.53 19.57 5.92 31.02 17.70 5.17 26.56 16.09 4.43
08 38.23 20.92 6.37 33.28 19.10 5.55 28.71 17.53 4.78
10 52.86 29.05 8.81 45.97 26.41 7.66 39.71 24.28 6.62
12 58.53 32.53 9.75 50.71 29.33 8.45 44.18 27.22 7.36
14 78.62 43.17 13.10 68.42 38.89 11.40 58.43 35.23 9.74
16 98.17 53.68 16.36 85.84 48.40 14.31 73.72 43.90 12.29
18 110.57 60.69 18.43 96.36 54.70 16.06 82.41 49.57 13.73
20 116.52 64.05 19.42 101.39 57.68 16.90 86.56 52.27 14.43
6
NOTE:
For any other conditions, please use selection software for fan coil units.
Apart from capacities, this software provides;
a) Sensible heat ratio
b) Leaving air temperature (DB/WB) - 0F c) Leaving water temperature - 0F d) Leaving water velocities (FPM)
e) Water pressure drop (feet of water)
LEGEND:
TC - Total Capacity (MBH)
SC - Sensible Heat Capacity (MBH)
WTR - Water Temperature Rise ( 0F) EWT - Entering Water Temperature ( 0F) GPM - Water flow (Gallons Per Minute)

CHILLED WATER COOLING CAPACITIES (METRIC UNITS)
WTR UNIT
( SIZE
0 ENTERING AIR TEMP. = 25
C)
5
6
7
0C DB/170C WB (@ HIGH SPEED) ENTERING AIR TEMP. = 270C DB/19.50C WB (@ HIGH SPEED)
70 4 C EWT
TC SC LPS
0C EWT
10
TC SC LPS
0C EWT
WTR UNIT
TC SC LPS ( SIZE
0 7
C)
5
6
7
0 4 C EWT
TC SC LPS
0C EWT
10
TC SC LPS
0C EWT
TC SC LPS
02 2.90 2.13 0.14 2.30 1.90 0.11 1.58 1.58 0.08
02 4.98 3.01 0.24 4.16 2.64 0.20 3.36 2.33 0.16
03 3.25 2.44 0.16 2.50 2.11 0.12 1.76 1.76 0.09
03 5.60 3.43 0.27 4.65 3.01 0.22 3.72 2.67 0.18
04 3.61 2.74 0.17 2.80 2.40 0.13 1.94 1.94 0.10
04 6.20 3.83 0.30 5.12 3.36 0.24 4.07 2.98 0.19
06 4.84 3.70 0.23 3.70 3.21 0.18 2.60 2.60 0.12
06 8.22 5.12 0.39 6.79 4.50 0.32 5.46 4.04 0.26
08
10
5.22
7.22
4.02
5.57
0.25
0.34
4.00
5.52
3.50
4.83
0.19
0.26
2.79
3.86
2.79
3.86
0.13
0.18
08
10
8.85
12.24
5.54
7.67
0.42
0.58
7.28
10.06
4.87
6.73
0.35
0.48
5.89
8.15
4.41
6.11
0.28
0.39
12 8.01 6.22 0.38 6.11 5.38 0.29 4.25 4.25 0.20
12 13.57 8.55 0.65 11.09 7.49 0.53 9.06 6.85 0.43
14 10.55 8.04 0.50 8.05 6.96 0.38 5.63 5.63 0.27
14 18.21 11.29 0.87 14.97 9.88 0.72 11.92 8.78 0.57
16 13.19 9.98 0.63 10.11 8.63 0.48 7.11 7.11 0.34
16 22.70 13.99 1.08 18.78 12.28 0.90 14.96 10.86 0.71
18 14.86 11.32 0.71 11.40 9.80 0.54 7.96 7.96 0.38
18 25.59 15.86 1.22 21.08 13.89 1.01 16.78 12.34 0.80
20 15.66 11.95 0.75 11.95 10.34 0.57 8.36 8.36 0.40
20 26.99 16.76 1.29 22.18 14.67 1.06 17.69 13.06 0.85
02 2.80 2.05 0.11 2.20 1.82 0.09 1.54 1.54 0.07
02 4.79 2.90 0.19 3.99 2.54 0.16 3.20 2.24 0.13
03 3.15 2.39 0.13 2.40 2.00 0.10 1.72 1.72 0.08
03 5.34 3.29 0.21 4.41 2.88 0.18 3.59 2.59 0.14
04 3.50 2.65 0.14 2.70 2.30 0.11 1.88 1.88 0.09
04 5.87 3.65 0.23 4.83 3.20 0.19 3.98 2.92 0.16
06 4.73 3.63 0.19 3.60 3.14 0.14 2.52 2.52 0.10
06 7.78 4.87 0.31 6.48 4.33 0.26 5.34 3.97 0.21
08 5.10 3.93 0.20 3.90 3.41 0.15 2.70 2.70 0.11
08 8.34 5.25 0.33 7.00 4.70 0.28 5.75 4.32 0.23
10 7.04 5.44 0.28 5.37 4.72 0.21 3.72 3.72 0.15
10 11.51 7.25 0.46 9.68 6.51 0.39 7.95 5.98 0.32
12 7.80 6.07 0.31 5.93 5.25 0.24 4.09 4.09 0.16
12 12.75 8.08 0.51 10.76 7.29 0.43 8.82 6.70 0.35
14 10.28 7.87 0.41 7.80 6.76 0.31 5.45 5.45 0.22
14 17.14 10.69 0.68 14.15 9.41 0.56 11.61 8.60 0.46
16 12.90 9.79 0.51 9.88 8.46 0.39 6.91 6.91 0.28
16 21.55 13.34 0.86 17.73 11.68 0.71 14.54 10.62 0.58
18 14.50 11.07 0.58 11.00 9.55 0.44 7.71 7.71 0.31
18 24.15 15.05 0.96 19.93 13.24 0.79 16.37 12.09 0.65
20 15.26 11.69 0.61 11.60 10.10 0.46 8.09 8.09 0.32
20 25.40 15.86 1.01 21.01 13.99 0.84 17.24 12.78 0.69
02 2.70 2.00 0.09 2.10 1.72 0.07 1.53 1.53 0.06
02 4.61 2.81 0.16 3.82 2.45 0.13 3.13 2.20 0.11
03 3.05 2.34 0.11 2.32 1.98 0.08 1.67 1.67 0.07
03 5.11 3.16 0.17 4.27 2.80 0.15 3.52 2.55 0.12
04 3.40 2.60 0.12 2.60 2.23 0.09 1.83 1.83 0.08
04 5.60 3.49 0.19 4.74 3.15 0.16 3.90 2.88 0.13
06 4.64 3.56 0.16 3.50 3.05 0.12 2.51 2.51 0.09
06 7.51 4.71 0.26 6.36 4.26 0.22 5.23 3.91 0.18
08
10
4.99
6.89
3.86
5.34
0.17
0.24
3.70
5.23
3.30
4.61
0.13
0.18
2.61
3.59
2.61
3.59
0.10
0.12
08
10
8.11
11.21
5.11
7.08
0.28
0.38
6.86
9.48
4.62
6.40
0.23
0.32
5.64
7.78
4.24
5.87
0.19
0.27
12 7.61 5.93 0.26 5.76 5.12 0.20 3.93 3.93 0.13
12 12.46 7.91 0.43 10.52 7.14 0.36 8.62 6.57 0.29
14 10.05 7.71 0.34 7.65 6.65 0.26 5.27 5.27 0.18
14 16.39 10.26 0.56 13.85 9.24 0.47 11.36 8.44 0.39
16 12.65 9.62 0.43 9.66 8.31 0.33 6.71 6.71 0.23
16 20.51 12.76 0.70 17.33 11.46 0.59 14.27 10.46 0.49
18 14.19 10.87 0.48 10.75 9.34 0.37 7.47 7.47 0.25
18 23.08 14.44 0.79 19.52 13.00 0.67 16.03 11.88 0.55
20 14.92 11.46 0.51 11.30 9.85 0.39 7.82 7.82 0.27
20 24.33 15.25 0.83 20.56 13.73 0.70 16.87 12.56 0.58
ENTERING AIR TEMP. = 29 0 C DB/21.5 0 C WB (@ HIGH SPEED)
WTR
( 0 C)
5
6
7
UNIT
7
SIZE
0 4 C EWT
TC SC LPS
0C EWT
10
TC SC LPS
0C EWT
TC SC LPS
02 6.71 3.67 0.32 5.85 3.27 0.28 5.01 2.93 0.24
03 7.61 4.20 0.36 6.60 3.75 0.32 5.63 3.38 0.27
04 8.48 4.71 0.41 7.34 4.21 0.35 6.23 3.80 0.30
06 11.24 6.27 0.54 9.73 5.63 0.46 8.26 5.09 0.39
08 12.17 6.81 0.58 10.51 6.11 0.50 8.90 5.53 0.43
10 16.87 9.45 0.81 14.55 8.47 0.70 12.31 7.66 0.59
12 18.85 10.60 0.90 16.20 9.49 0.77 13.65 8.57 0.65
14 25.15 13.98 1.20 21.66 12.46 1.03 18.30 11.20 0.87
16 31.00 17.18 1.48 26.84 15.34 1.28 22.81 13.83 1.09
18 35.23 19.58 1.68 30.39 17.47 1.45 25.73 15.73 1.23
20 37.27 20.74 1.78 32.11 18.49 1.53 27.13 16.64 1.30
02 6.45 3.54 0.26 5.60 3.15 0.22 4.81 2.84 0.19
03 7.27 4.03 0.29 6.31 3.60 0.25 5.37 3.25 0.21
04 8.06 4.49 0.32 6.97 4.02 0.28 5.90 3.63 0.23
06 10.70 5.99 0.43 9.24 5.37 0.37 7.82 4.86 0.31
08 11.54 6.48 0.46 9.94 5.81 0.40 8.38 5.26 0.33
10 15.96 8.98 0.64 13.75 8.05 0.55 11.57 7.27 0.46
12 17.74 10.01 0.71 15.22 8.96 0.61 12.81 8.12 0.51
14 23.75 13.25 0.95 20.45 11.84 0.81 17.23 10.65 0.69
16 29.52 16.41 1.18 25.54 14.67 1.02 21.66 13.23 0.86
18 33.36 18.60 1.33 28.76 16.63 1.15 24.28 14.98 0.97
20 35.20 19.66 1.40 30.30 17.57 1.21 25.54 15.81 1.02
02 6.25 3.43 0.21 5.43 3.06 0.19 4.64 2.75 0.16
03 7.00 3.88 0.24 6.06 3.47 0.21 5.13 3.12 0.18
04 7.71 4.31 0.26 6.65 3.86 0.23 5.62 3.48 0.19
06 10.23 5.74 0.35 8.81 5.15 0.30 7.54 4.71 0.26
08 11.00 6.20 0.38 9.44 5.55 0.32 8.14 5.13 0.28
10 15.19 8.57 0.52 13.03 7.67 0.44 11.26 7.11 0.38
12 16.79 9.52 0.57 14.51 8.59 0.49 12.52 7.96 0.43
14 22.61 12.66 0.77 19.41 11.30 0.66 16.46 10.25 0.56
16 28.29 15.77 0.97 24.42 14.10 0.83 20.62 12.69 0.70
18 31.81 17.80 1.09 27.36 15.90 0.93 23.18 14.41 0.79
20 33.50 18.77 1.14 28.76 16.77 0.98 24.44 15.23 0.83
7
NOTE:
For any other conditions, please use selection software for fan coil units.
Apart from capacities, this software provides;
a) Sensible heat ratio
b) Leaving air temperature (DB/WB) - 0C c) Leaving water temperature - 0C d) Leaving water velocities (m/s)
e) Water pressure drop (kp)
LEGEND:
TC - Total Capacity (kW)
SC - Sensible Heat Capacity (kW)
WTR - Water Temperature Rise ( 0C) EWT - Entering Water Temperature ( 0C) LPS - Water flow (Liters Per Second)
M
E
T
R
I
C
U
N
I
T
S

E
N
G
L
I
S
H
U
N
I
T
S
MODEL
NUMBER
BLOWER
MOTOR
SPEED
FAN PERFORMANCE DATA (ENGLISH UNITS)
CFM @ EXTERNAL STATIC PRESSURE (Inches of water)
0.0 0.05 0.1 0.15 0.2 0.25 0.3 0.4 0.5
HIGH 289 255 221 206 183 160 137 110 85
DWX02 MEDIUM 215 176 136 103 70 60 - - -
LOW - - - - - - - - -
HIGH 378 357 336 303 269 258 247 193 130
DWX03 MEDIUM 289 255 221 206 183 160 137 110 85
LOW 215 176 136 103 70 60 - - -
HIGH 462 431 401 390 380 353 326 254 183
DWX04 MEDIUM 418 399 381 361 341 318 295 231 168
LOW 378 357 336 303 269 258 247 193 130
HIGH 660 642 591 566 542 508 475 406 334
DWX06 MEDIUM 552 528 514 478 452 421 390 333 255
LOW 470 445 420 395 375 345 315 265 175
HIGH 750 729 698 670 643 613 584 510 427
DWX08 MEDIUM 660 642 591 566 542 508 475 406 334
LOW 552 528 504 478 452 421 390 333 255
HIGH 1050 987 960 934 908 886 864 804 741
DWX10 MEDIUM 852 827 802 775 748 727 706 650 594
LOW 637 614 592 575 559 533 507 462 408
HIGH 1234 1209 1184 1153 1122 1083 1044 966 894
DWX12 MEDIUM 1050 987 960 934 908 886 864 804 741
LOW 852 827 802 775 748 727 706 650 594
HIGH 1400 1362 1324 1291 1258 1218 1178 1102 1009
DWX14 MEDIUM 1225 1192 1160 1130 1100 1064 1028 958 877
LOW 995 975 955 928 902 876 851 798 737
HIGH 1631 1601 1571 1538 1505 1466 1426 1331 1245
DWX16 MEDIUM 1366 1338 1310 1277 1244 1199 1153 1070 970
LOW 1100 1065 1030 992 954 912 869 792 726
HIGH 1950 1900 1840 1780 1728 1690 1651 1558 1463
DWX18 MEDIUM 1631 1601 1571 1538 1505 1466 1426 1331 1245
LOW 1366 1338 1310 1277 1244 1199 1153 1070 970
HIGH 2100 2070 2050 2010 1970 1930 1900 1800 1650
DWX20 MEDIUM 1970 1930 1900 1860 1820 1785 1750 1700 1550
LOW 1700 1680 1660 1640 1620 1600 1570 1475 1400
NOTE: 1. Values include losses for dry coil (3 row for DWX02 - DWX12 & 4 row for DWX14 - DWX20) and filters.
2. For additional hot water row, add 0.1" WG to the ESP.
8

MODEL
NUMBER
BLOWER
MOTOR
SPEED
FAN PERFORMANCE DATA (METRIC UNITS)
LITERS PER SECOND @ EXTERNAL STATIC PRESSURE (Pascal)
0.0 12.5 25 37.5 50 62.5 75 100 125
HIGH 136 120 104 92 86 76 65 52 41
DWX02 MEDIUM 101 83 64 49 33 28 - - -
LOW - - - - - - - - -
HIGH 178 168 159 143 127 122 117 91 61
DWX03 MEDIUM 136 120 104 92 86 76 65 52 41
LOW 101 83 64 49 33 28 - - -
HIGH 218 203 189 184 179 167 154 120 86
DWX04 MEDIUM 197 188 180 170 161 150 139 109 79
LOW 178 168 159 143 127 122 117 91 61
HIGH 311 303 279 267 256 240 224 192 158
DWX06 MEDIUM 260 249 243 226 213 199 184 157 120
LOW 222 210 198 186 177 163 149 125 83
HIGH 354 344 329 316 303 289 276 241 202
DWX08 MEDIUM 311 303 279 267 256 240 224 192 158
LOW 260 249 238 226 213 199 184 157 120
HIGH 495 466 453 441 428 418 408 379 350
DWX10 MEDIUM 402 390 378 366 353 343 333 307 280
LOW 301 290 279 271 264 252 239 218 193
HIGH 582 571 559 544 529 511 493 456 422
DWX12 MEDIUM 495 466 453 441 428 418 408 379 350
LOW 402 390 378 366 353 343 333 307 280
HIGH 661 643 625 609 594 575 556 520 476
DWX14 MEDIUM 578 563 547 533 519 502 485 452 414
LOW 470 460 451 438 426 413 402 377 348
HIGH 770 756 741 726 710 692 673 628 588
DWX16 MEDIUM 645 631 618 603 587 566 544 505 458
LOW 519 503 486 468 450 430 410 374 343
HIGH 920 897 868 840 815 798 779 735 690
DWX18 MEDIUM 770 756 741 726 710 692 673 628 588
LOW 645 631 618 603 587 566 544 505 458
HIGH 991 977 967 949 930 911 897 849 779
DWX20 MEDIUM 930 911 897 878 859 842 826 802 731
LOW 802 793 783 774 764 755 741 696 661
NOTE: 1. Values include losses for dry coil (3 row for DWX02 - DWX12 & 4 row for DWX14 - DWX20) and filters.
2. For additional hot water row, add 25 pascal to the ESP.
9
M
E
T
R
I
C
U
N
I
T
S

B
4
I
5
E
DIMENSIONS
MODELS: DWX02 - DWX20
7
END VIEW TOP VIEW
G
C
NOTE: All dimensions are in mm (dimensions in brackets are in inches).
D
A
H
2
F
FRONT VIEW
MODEL
A B C D
DIMENSIONS
E F G H I
DWX02 805 (31.7) 520 (20.5) 246 (9.7) 863 (34) 444 (17.5) 696 (27.4) 183 (7.2) 736 (29) 208 (8.2)
DWX03 805 (31.7) 520 (20.5) 246 (9.7) 863 (34) 444 (17.5) 696 (27.4) 183 (7.2) 736 (29) 208 (8.2)
DWX04 805 (31.7) 520 (20.5) 246 (9.7) 863 (34) 444 (17.5) 696 (27.4) 183 (7.2) 736 (29) 208 (8.2)
DWX06 904 (35.6) 610 (24) 244 (9.6) 960 (37.8) 521 (20.5) 769 (30.3) 183 (7.2) 841 (33.1) 206 (8.1)
DWX08 904 (35.6) 610 (24) 244 (9.6) 960 (37.8) 521 (20.5) 769 (30.3) 183 (7.2) 841 (33.1) 206 (8.1)
DWX10 1011 (39.8) 762 (30) 318 (12.5) 1067 (42) 640 (25.2) 858 (33.8) 241 (9.5) 945 (37.2) 259 (10.2)
DWX12 1011 (39.8) 762 (30) 318 (12.5) 1067 (42) 640 (25.2) 858 (33.8) 241 (9.5) 945 (37.2) 259 (10.2)
DWX14 1011 (39.8) 762 (30) 318 (12.5) 1067 (42) 640 (25.2) 858 (33.8) 241 (9.5) 945 (37.2) 259 (10.2)
DWX16 1194 (47) 762 (30) 368 (14.5) 1245 (49) 625 (24.6) 894 (35.2) 266 (10.5) 1155 (45.5) 292 (11.5)
DWX18 1194 (47) 762 (30) 368 (14.5) 1245 (49) 625 (24.6) 894 (35.2) 266 (10.5) 1155 (45.5) 292 (11.5)
DWX20 1194 (47) 762 (30) 368 (14.5) 1245 (49) 625 (24.6) 894 (35.2) 266 (10.5) 1155 (45.5) 292 (11.5)
10
1
7.0"
NO. OF
MOTORS
1
1
1
1
1
1
1
1
1
1
1
6
3.5"
3/4" NPT(14TPI)
DRAIN TUBE.
3
NO. OF
BLOWERS
1
1
1
2
2
2
2
2
2
2
2
END VIEW
0.5"
1.0"
1. Blower & motor assembly
2. Cooling coil
3. Control box
4. Filter rack
5. Unit mounting brackets
6. Drip lip
7. Duct connector

INLET
OUTLET
INLET
OUTLET
MODEL
DIMENSIONAL DATA - COIL CONNECTIONS
RH SIDE
RH SIDE
MODELS: DWX02, 03 & 04 (VERTICAL COIL)
MODELS: DWX06 - DWX20 (INCLINED COIL)
CHILLED WATER COIL
HOT WATER COIL
A B C D No. OF ROWS E F No. OF ROWS
DWX02 225 (8.9) 237 (9.3) 32 (1.3) 176 (6.9) 3 264 (10.4) 275 (10.8) 1
DWX03 225 (8.9) 237 (9.3) 32 (1.3) 176 (6.9) 3 264 (10.4) 275 (10.8) 1
DWX04 225 (8.9) 237 (9.3) 32 (1.3) 176 (6.9) 3 264 (10.4) 275 (10.8) 1
DWX06 313 (12.3) 324 (12.8) 32 (1.3) 178 (7) 3 351 (13.8) 362 (14.3) 1
DWX08 313 (12.3) 324 (12.8) 32 (1.3) 178 (7) 3 351 (13.8) 362 (14.3) 1
DWX10 313 (12.3) 324 (12.8) 83 (3.3) 227 (8.9) 3 351 (13.8) 362 (14.3) 1
DWX12 313 (12.3) 324 (12.8) 83 (3.3) 227 (8.9) 3 351 (13.8) 362 (14.3) 1
DWX14 319 (12.6) 330 (13) 83 (3.3) 227 (8.9) 4 357 (14) 368 (14.5) 1
DWX16 376 (14.8) 389 (15.3) 129 (5) 273 (10.8) 4 414 (16.3) 427 (16.8) 1
DWX18 376 (14.8) 389 (15.3) 129 (5) 273 (10.8) 4 414 (16.3) 427 (16.8) 1
DWX20 376 (14.8) 389 (15.3) 129 (5) 273 (10.8) 4 414 (16.3) 427 (16.8) 1
NOTE: All dimensions are in mm (dimensions in brackets are in inches).
11
LH SIDE
LH SIDE

TYPICAL SCHEMATIC WIRING DIAGRAM
HEAT/COOL MODELS - ELECTRIC HEATER
MODELS: DWX02 - DWX14
MODELS: DWX16 - DWX20
12
LEGEND
AFS AIR FLOW SWITCH
ATB AUXILIARY TERMINAL BLOCK
CAP CAPACITOR
EV ELECTRIC VALVE
FM FAN MOTOR
GND LUG GROUND
HC HEATER CONTACTOR
HTR HEATER
HVTB HIGH VOLTAGE TERMINAL BLOCK
L/L1 LINE OR LINE 1
L2/N LINE 2 OR NEUTRAL
OHT OVER HEAT THERMOSTAT
_ _ _
FIELD WIRING
FACTORY WIRING
NOTES
1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.
2. MOTORS THERMALLY PROTECTED.
3 . ▲ HVTB IS NOT REQUIRED FOR HEATER MODELS.
4. USE HEATER AS PER OPTION REQUIRED. IF EV
& HEATERS ARE FACTORY INSTALLED, PLEASE
READ DASHED LINE AS CONTINUOUS LINE.
5.USE THERMOSTAT WITH CONTACT RATING
3AMPS (MINIMUM) FOR FM CONNECTION (FOR
DWX02 - DWX14 ONLY).
6. USE COPPER CONDUCTOR WIRES ONLY.
OPTIONAL VFC CONNECTION (UNIT ON/OFF INDICATION)

TYPICAL SCHEMATIC WIRING DIAGRAM
HEAT/COOL MODELS - HOT WATER
MODELS: DWX02 - DWX14
MODELS: DWX16 - DWX20
13
LEGEND
AFS AIR FLOW SWITCH
ATB AUXILIARY TERMINAL BLOCK
CAP CAPACITOR
EV ELECTRIC VALVE (COOLING)
EV1 ELECTRIC VALVE (HEATING)
FM FAN MOTOR
GND LUG GROUND
HVTB HIGH VOLTAGE TERMINAL BLOCK
L/L1 LINE OR LINE 1
L2/N LINE 2 OR NEUTRAL
_ _ _
FIELD WIRING
FACTORY WIRING
NOTES
1. POWER SUPPLY, REFER TO UNIT NAMEPLATE.
2. MOTORS THERMALLY PROTECTED.
3. USE COPPER CONDUCTOR WIRES ONLY.
3. IF EV & EV1 ARE FACTORY INSTALLED, PLEASE
READ DASHED LINE AS CONTINUOUS LINE.
4.USE THERMOSTAT WITH CONTACT RATING
3AMPS (MINIMUM) FOR FM CONNECTION (FOR
DWX02 - DWX14 ONLY).
5. USE COPPER CONDUCTOR WIRES ONLY.
OPTIONAL VFC CONNECTION (UNIT ON/OFF INDICATION)

DIMENSIONS - HEATER BOX
1
2
3
VALVE PACKAGE 3-D (for 2-pipe)
Two gate valves
One balancing valve
One 3-way motor valve
1
2
3
HEATER ARRANGEMENTS
MODEL
A
DIMENSIONS
B C
DWX 02/03/04 696 (27.4) 228 (9) 216 (8.5)
DWX 06/08 769 (30.3) 228 (9) 216 (8.5)
DWX 10/12/14 858 (33.8) 241 (9.5) 147 (5.8)
DWX 16/18/20 894 (35.2) 266 (10.5) 147 (5.8) NOTE: All dimensions are in mm (dimensions in brackets are in inches).
VALVE PACKAGES
Two gate shut off valves
One balancing valve
One 3-way motor valve
FCU 3
14
VALVE PACKAGE 4-D (for 4-pipe)
2
1
1
1
2
3
Four gate shut off valves
Two balancing valves
Two 3-way motor valves
CHILLER

INSTALLATION
The complete shipment should be inspected for damage. Any damage, visible or concealed, should be reported immediately
to the delivery man or driver and noted on the shipping invoice.
Place unit in position and make sure that unit is level. This is important to assure proper drainage and operation. Slots
provided in the mounting brackets should be used for installing the units.
ELECTRICAL
Please ensure power supply (V-Ph-Hz) to the unit is as per unit nameplate requirements.
Caution: Operation of the unit on improper power supply will result in damage to the unit.
Warning: Before installation or servicing, always TURN OFF all power to the unit. There may be more than one disconnect
switch. Ensure all of them are turned off.
GROUND & POWER WIRES
Connect power wires as per wiring diagram. Connect ground wire to the ground lug inside the control box.
MAINTENANCE
COIL
Coil may be cleaned by removing and brushing between fins with a stiff wire brush. Brushing should be followed
by cleaning with vacuum cleaner. The coil may also be cleaned by using a high pressure air, if compressed air
source is available. It should be pointed out that if air filters are used and periodically cleaned, the coils will not be
clogged up prematurely.
DRAIN PIPE
Drain pipe should be checked before summer operation of unit. If it is clogged, steps should be taken to clear the debris so
that condensate will flow out easily. A standard pipe cleaner for 1/2" ID pipe may be used. Periodic checks of the drain pipe
should be taken during summer operation, as there is a possibility of it becoming clogged with dirt.
FILTER CLEANING
Remove access panel, slide filter out of filter rack, and clean as follows:
Tap filter on solid surface to dislodge heavy particles. Wash under stream of hot water. If filter has been put to exceptional
service, a mild solution of Sal-Soda, Tri-Sodium Phosphate or any other commercial solvent can be used. Set filter on end
with slots in frame down, which allows it to drain. Filters should dry thoroughly before reuse.
REPLACEMENT PARTS
When writing for replacement parts, refer to model number and serial number on the nameplate of the unit.
15

95 CM
Access for blowers & motor
Blower deck holding bolt
Blower deck
Bottom panel
SERVICING INSTRUCTIONS
NOTES:
1) Required indoor unit access clearances are shown as hatched area.
2) Free sevice access should be available from the bottom of the unit for removing & servicing the blower/motor deck.
3) Servicing instructions:
a) Remove the bottom panel.
b) Support the blower deck while unscrewing the 4 blower deck holding bolts and bring down the blower deck.
16
50 CM
50 CM
30 CM

DESCRIPTION
PARTS LIST
MODEL NUMBER
DWX02/03/04 DWX06/08 DWX10/12/14 DWX16/18 DWX20
BLOWER MOTOR 800-827-17 800-547-65 800-547-66 800-547-67 800-547-67
BLOWER WHEEL 800-711-50 800-711-51 800-711-52 800-711-53 800-711-53
VALVE PACKAGE (3D) 700-364-81 700-364-81 700-364-81 700-364-81 700-364-81
RETURN AIR FILTERS 800-249-43 800-249-39 800-249-38 800-249-36 800-249-36
THERMOSTAT 800-646-21 800-646-21 800-646-21 800-646-21 800-646-21
NOTE: For 4D type valve package, order 2 x 3D valve packages.
17

20
PL-AP-DWX-08-2M-E